Found in a 1967 Electronic Design, this circuit changes the phase of a signal in 8 different ways, given by the formulas next to the diagram. Equivalent general-purpose transistors can be used.
In the figure we have the way to use the 555 to control loads in the bistable form. The circuit is...
This continuity test was found in a 90s Electronic Engineering. Transistors are types of general...
Suggested by a 1968 Philips documentation this Eccles Jordan rocker as it was called can operate...